/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    usart.h
  * @brief   This file contains all the function prototypes for
  *          the usart.c file
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __USART_H__
#define __USART_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

extern UART_HandleTypeDef huart1;

/* USER CODE BEGIN Private defines */
#define RXBUFFERSIZE   1        // 缓存大小，这个值决定了收到多少个字节数据执行一次回调函数
#define USART_REC_LEN  200      // 定义最大接收字节数 200

extern uint16_t USART_RX_STA;      // 接收状态标记	  
                                // bit15 接收完成标志
                                // bit14 接收到0x0d
                                // bit13~0 接收到的有效字节数目
extern uint8_t aRxBuffer[RXBUFFERSIZE]; // HAL库使用的串口接收缓冲
//注意,读取USARTx->SR能避免莫名其妙的错误   	
extern uint8_t USART_RX_BUF[USART_REC_LEN];     //接收缓冲,最大USART_REC_LEN个字节.

/* USER CODE END Private defines */

void MX_USART1_UART_Init(void);

/* USER CODE BEGIN Prototypes */

/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif

#endif /* __USART_H__ */

